Engine.



Piatented Apr. 8, |902. W. D. LINSCOTT. Y

ENGINE.

(Application led June 7, 1901..)Y

(Nuo Model.)

Q Y .d

No. 697,346. Patented Apr. 8, |902. W. D. LINSCOTT.

ENGINE.V

(Application led June 7,-190 1.) A (un Model.) 3 sheets-sheet 2.

Patented Apr. 8, |902.

No. 697,346. y

W. D. LINSCUTT.

ENGINE.

(Application fxled June 7, 1901.\y 1 (no Model.) 3 sheets-sheet 3.

UNITED STATES PATENT OFFICE.

JWILLIAM DOUGLAS LINSCOTT, O`F PIEDMONT, SOUTH DAKOTA, ASSIGNOR OFFOUR-TENTHS TO GEORGE C. HUNT, OE RAPID CITY, SOUTH DAKOTA, AND OLAFOLOFSON LYN G, CHRISTOPHER DERBYSHIRE HOOKER, AND MICHAEL JAMESvGILLIGAN, OE PIEDMONl-'SOUTH DAKOTA.

ENGIN.

SPECIFICATION forming m of Letters Patent No. 697,346, dated April s,1902.

Application led June 7,1901. Serial No. 63,571.v (No model.)

To @ZZ whom it may concern).-

Be it known that I, WILLIAM DOUGLAS LINSOOTT, a citizen of the UnitedStates, and a resident ofA Piedmont, in the county of Meade 5 and Stateof South Dakota, have invented a new and Improved Engine, of which thefollowing is a full, clear, and eXact description.

This invention relates to an engine adapted to be driven by Huid underpressure, and par- Io ticularly adapted for use incnnection With steam.

It comprises anumber of rotary pistons at-V tached to a common shaft andfitted Within a cylinder-like casing. The casing and piston I5 areprovided With certain peculiarly-formed ribs on which the steam acts,whereby the motive force is produced.

This specification is a specific description of one form of theinvention, While the claim zo is a deinition of the actual scopethereof.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the views.

Figure l is a longitudinal section of the invention. Eig. 2 is anelevation of one of the sections of the casing. Fig. 3 is an elevationof one of the pistons. Fig. 4 is an end elevation of the cylinder-headslooking in the direction of the arrow on the line 4 4 of Fig. l, andFig. 5 is a sectional view showing the form of Athe ribs and the actionof the steam thereon.

o, indicates suitable bearings in which is arranged to turn theengine-shaft l).

c and d indicate, respectively, the cylinderheads, Which arestationary-and which are arrangedone at each end of the enginejustinside of the bearings a. The cylinder or casing itself is made upof a number of annular sections c, which comprise imperforate outerWalls joined together, the parts c, d, and c being held by tie-rods f,engaged with eyes on the cylinder-heads. (See the elements in Fig. 4.)Each section e of the casing has a Web-like portion made up of a numberof annular series of ribs or partitions c', between each of which seriesare formed circular partitions e2. These Web-like portions of thesections e are set at one side of the sections, (see Fig. 1,) thusforming cavities in which are received the Working or Web portions ofthe pistons. These portions of the pistons, as indicated in Figs. l and3, are made up of a number of annular series of radial ribs or vanes g,

` said annular series of ribs being separated by circular partitions g.This forms a structure similar to the structure produced by the parts eand e2, and the various circular partitions e2 and g' are respectivelyin registry with cach other, steam-tight connections being formed byribs produced on the edges of the partitions g and tting loosely incorresponding grooves formed in the edges of the partitions e2. Eachpiston also comprises an elongated hub g2, these hubs being keyed to theshaft b and being projected beyond the web portions of the pistons, soas to form a support for the web portions of the sections e of thecasing `or cylinder. At one end of the engine a bushing or spacingcollar 71, is fastened to the shaft b and lies Within the web portion ofthe adjacent section e of the cylinder to support the same, since atthis point there will be no support furnished by a piston-hub.

e' indicates the motive-fluid feed-pipe and 7e the exhaust-pipe. Thefeed-pipe i communicates With an annular cavity c', formed in thepiston-head c. (See Fig. l.) This cavity .communicates and feeds steamto the numerous annular series of steampassages formed in thecylinder-Webs and in the pistons by the parts c e2 and g g'. Referenceto Fig. 2 will show that each of these numerous series of passages arein longitudinal linewith each other, and therefore form a steam-passageeX- tending completely through the engine. the end of the engineopposite the pipes e and k the head d is formed with an annularreturn-port d', which leads the steam back into the next series ofpassages, through which the steam passes to a port c2 in the head c,such port being similar to the port d. The head d is provided with asecond port d2, similar to the port d', and this second port leads thesteam to the outermost steam-passage, Which port communicates with anannular cavity c3 Aty in the head c, such cavity in turn communi'-cating with the exhaust-pipe 7c.

Reference to Fig. 5 will show the form of the ribs or vanes c and g.These vanes are preferably V-shaped, and assuming that the steam ispassing in the direction of the arrows in this view and that the two endsections shown in the view are the stationary web portions of thecylinder, it will be seen that the steam acting by impact and reactingon the ribs or vanes g will turn the pistons in the direction of thearrow in Fig. 5. The steam has a continuous course through the variouspassages of the engine, thus deriving from the steam all the energytherein and driving the pistons continuously in one direction, which inturn imparts movement to the shaft b. Obviously any number of annularsteam-passages could be formed in the engine. It will be apparent thateach annular series of ribs e and g forms a tubular steam-passageextending throughout the length of the engine. One of these passages issufficient to fulfil the principle of my invention; but obviously theycould be multiplied to any extent desired.

Various changes in the forni, proportions, and minor details of myinvention may be resorted to without departing from the spirit and scopeof my invention. Hence I consider myself entitled to all such variationsas may lie Within the scope of my claim.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- An engine, comprising a cylinder having aninwardly-disposed web-like portion,a shaft running centrally through thecylinder, a piston fastened to the shaft at each side of said web-likeportion of the cylinder and having Web-like portions lying alongside ofthe Weblike portion of the cylinder, all of such Weblike portions havingregistering annular or tubular steam-passages with V-shaped ribs orvanes therein, said vanes being set oppositely in each of said Web-likeportions, and means for conducting the motive fluid to and from the saidsteam-passages.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

WILLIAM DOUGLAS LINSCOTT.'

Witnesses:

THos. D. MURRIN, LEWIs NV. YOUNG.

